How long is the sideboard in MTG Arena?
15 cards, no more, no less. Perfect for tweaking your deck between matches to outsmart your opponent.
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In MTG Arena, just like in traditional Magic The Gathering play, your sideboard can have up to 15 cards. It's the same across other formats too, so you can strategize all you want with those 15 slots!
Gotta stick with 15 cards in the sideboard. It's been like that forever, not just in Arena but in all MTG formats. Handy for adjusting strategies or countering pesky decks you keep bumping into.
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